REVENUE - Disaggregation of Revenue by Product (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	$ 201,135	$ 194,881	$ 588,479	$ 662,701
Lease Revenue	444	406	1,047	973
Total Revenue	201,579	195,287	589,526	663,674
Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	143,236	167,569	458,584	544,953
Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	33,908	44,310	107,791	142,150
Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	107,985	119,038	347,624	387,027
Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,343	4,221	3,169	15,776
Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	27,168	15,283	51,450	37,689
License Revenue, Primarily from Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	7,707	5,585	18,624	17,159
Other Non-Timber/Carbon Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	19,191	9,409	31,874	19,575
Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	270	289	952	955
Total Real Estate Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	30,731	12,029	78,445	80,059
Improved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	3,120	2,296	20,155	18,828
Unimproved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	114		114
Rural
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	20,461	6,964	42,587	47,333
Timberland & Non-Strategic
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,055		2,947	11,400
Deferred Revenue/Other
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	5,981	2,769	12,642	2,498
Elim.
Disaggregation of Revenue [Line Items]
Total Revenue	(111)	(128)	(357)	(226)
Operating Segments | Southern Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	63,973	64,549	204,125	207,584
Total Revenue	63,973	64,549	204,125	207,584
Operating Segments | Southern Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	54,131	57,728	174,984	186,924
Operating Segments | Southern Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	25,514	32,564	76,152	100,945
Operating Segments | Southern Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	27,274	20,943	95,663	70,203
Operating Segments | Southern Timber | Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,343	4,221	3,169	15,776
Operating Segments | Southern Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	9,842	6,821	29,141	20,660
Operating Segments | Southern Timber | License Revenue, Primarily from Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	7,178	5,141	17,632	16,322
Operating Segments | Southern Timber | Other Non-Timber/Carbon Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	2,664	1,680	11,509	4,338
Operating Segments | Southern Timber | Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Pacific Northwest Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	29,325	34,397	96,061	119,834
Total Revenue	29,325	34,397	96,061	119,834
Operating Segments | Pacific Northwest Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	27,841	32,619	91,321	115,633
Operating Segments | Pacific Northwest Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,440	2,989	7,358	9,478
Operating Segments | Pacific Northwest Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	26,401	29,630	83,963	106,155
Operating Segments | Pacific Northwest Timber | Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Pacific Northwest Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,484	1,778	4,740	4,201
Operating Segments | Pacific Northwest Timber | License Revenue, Primarily from Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	439	326	780	571
Operating Segments | Pacific Northwest Timber | Other Non-Timber/Carbon Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,045	1,452	3,960	3,630
Operating Segments | Pacific Northwest Timber | Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | New Zealand Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	70,435	72,452	175,438	202,723
Total Revenue	70,435	72,452	175,438	202,723
Operating Segments | New Zealand Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	54,863	66,057	158,821	190,850
Operating Segments | New Zealand Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	6,507	7,645	20,953	26,091
Operating Segments | New Zealand Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	48,356	58,412	137,868	164,759
Operating Segments | New Zealand Timber | Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | New Zealand Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	15,572	6,395	16,617	11,873
Operating Segments | New Zealand Timber | License Revenue, Primarily from Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	90	118	212	266
Operating Segments | New Zealand Timber | Other Non-Timber/Carbon Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	15,482	6,277	16,405	11,607
Operating Segments | New Zealand Timber | Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Real Estate
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	30,731	12,029	78,445	80,059
Lease Revenue	444	406	1,047	973
Total Revenue	31,175	12,435	79,492	81,032
Operating Segments | Real Estate | Total Real Estate Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	30,731	12,029	78,445	80,059
Operating Segments | Real Estate | Improved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	3,120	2,296	20,155	18,828
Operating Segments | Real Estate | Unimproved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	114		114
Operating Segments | Real Estate | Rural
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	20,461	6,964	42,587	47,333
Operating Segments | Real Estate | Timberland & Non-Strategic
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,055		2,947	11,400
Operating Segments | Real Estate | Deferred Revenue/Other
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	5,981	2,769	12,642	2,498
Operating Segments | Trading
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	6,671	11,454	34,410	52,501
Total Revenue	6,782	11,582	34,767	52,727
Operating Segments | Trading | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	6,401	11,165	33,458	51,546
Operating Segments | Trading | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	447	1,112	3,328	5,636
Operating Segments | Trading | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	5,954	10,053	30,130	45,910
Operating Segments | Trading | Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Trading | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	270	289	952	955
Operating Segments | Trading | License Revenue, Primarily from Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Trading | Other Non-Timber/Carbon Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	0	0	0	0
Operating Segments | Trading | Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	270	289	952	955
Intersegment
Disaggregation of Revenue [Line Items]
Total Revenue		0
Intersegment | Trading
Disaggregation of Revenue [Line Items]
Total Revenue	111	128	357	226
Intersegment | Elim.
Disaggregation of Revenue [Line Items]
Total Revenue	$ (111)	$ (128)	$ (357)	$ (226)